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atomic
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fallbacks
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inc_unless_negative
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<<
EOF
static
inline
bool
$
{
atomic
}
_inc_unless_negative
(
$
{
atomic
}
_t
*
v
)
{
$
{
int
}
c
=
$
{
atomic
}
_read
(
v
);
do
{
if
(
unlikely
(
c
<
0
))
return
false
;
}
while
(!
$
{
atomic
}
_try_cmpxchg
(
v
,
&
c
,
c
+
1
));
return
true
;
}
EOF